Applies to: VDT2 (VDT)
What does Scania VDT fault code 21 mean?
Short circuit to ground.
What causes Scania DTC 21?
Short circuit in the harness-to-component connectors or cable harness.
What are the symptoms?
Results in limited driveability. Affects the gear changing performance. Affects the retarder function. Affects engagement of reverse gear.
How to fix Scania VDT fault code 21?
Check the harness-to-component connectors and cable harness.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.
Code 21 in other Scania systems
- 21hex 0015 Communication with the TCO control unit
- 21hex 0015 Fuel level sensor
- 21hex 0015 Wheel speed
- 21hex 0015 Fan motor
- 21hex 0015 Yellow CAN bus
- 21hex 0015 Communication with the heater
- 21hex 0015 High temperature on the motherboard
- 21hex 0015 Control unit
- 21hex 0015 Front axle solenoid valve.
- 21hex 0015 Windscreen wiper, High speed.